CN106913368B - Minimally invasive difficult-to-restore cis-tuberosity fracture reduction forceps - Google Patents
Minimally invasive difficult-to-restore cis-tuberosity fracture reduction forceps Download PDFInfo
- Publication number
- CN106913368B CN106913368B CN201710265735.0A CN201710265735A CN106913368B CN 106913368 B CN106913368 B CN 106913368B CN 201710265735 A CN201710265735 A CN 201710265735A CN 106913368 B CN106913368 B CN 106913368B
- Authority
- CN
- China
- Prior art keywords
- arm
- pressurizing
- reset
- reduction
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2926—Details of heads or jaws
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/564—Methods for bone or joint treatment
Abstract
The invention discloses a minimally invasive difficult-to-restore intertrochanter fracture reduction forceps which comprises two reduction arms, wherein the two reduction arms are mutually hinged in a detachable mode through a hinge assembly, each reduction arm comprises a forceps body and a pressurizing arm which are respectively arranged at two sides of the hinge assembly, and a clamping groove is formed in one side, facing the forceps body of the other reduction arm, of the forceps body of each reduction arm. The minimally invasive difficult-to-restore cis-tuberosity fracture reduction forceps are simple in structure, easy to manufacture, convenient and fast to use and high in efficiency, and the length of an operation incision is not required to be increased during use, and deep soft tissue injury is not increased.
Description
Technical Field
The invention relates to the technical field of medical appliances, in particular to a minimally invasive difficult-to-restore cis-tuberosity fracture reduction forceps.
Background
The intertrochanteric fracture is a clinically common fracture, with the development of socioeconomic and the aging of population, the incidence rate of the intertrochanteric fracture and the complexity of fracture types become gradually rising trend, so as to avoid the complications of deformity healing and long-term bedridden old people in order to realize early patient unloading activities, the internal fixation operation treatment has become the first treatment mode of the fracture treatment, the key point of the internal fixation operation treatment is the reduction quality of the fracture, good reset enables the fracture blocks to be well supported, the compressive stress and the shearing force born by the internal fixation materials are further reduced, the success rate of the operation is improved, and the complications of fracture re-displacement, internal fixation, nail withdrawal and the like from the femoral head are avoided. The minimally invasive intramedullary nail has become the development direction of the surgical treatment of the intertrochanteric fracture and has been widely applied clinically, however, how to achieve the anatomic reduction of the fracture without increasing the trauma of the soft tissue has been a clinical hot spot and difficult problem.
Three problems mainly faced by the prior clinical treatment of intertrochanter fracture by adopting an intramedullary nail are as follows:
1. good reduction is difficult in complex fracture surgery: at present, the main stream in clinic is to fix a closed reduction intramedullary nail on a traction bed, the traction reduction principle is to assist fracture reduction by the tension of soft tissues, and because the anatomical characteristics among femur tuberosities are relatively special, fracture ends often appear in the process of fracture closed traction reduction and can not be well and accurately reduced, especially in complex tuberosity fracture, the difficulty is higher, the operation is often required to be repeatedly adjusted and X-ray perspective is repeatedly carried out, the operation time is increased, and the medical staff and patients are also injured by excessive X-ray perspective. And partial fracture which is difficult to reduce needs to be cut for reduction, which can increase trauma and hemorrhage, and the probability of fracture disunion after operation is increased.
2. For severe fracture patients, the soft tissue cover around the fracture is seriously damaged, and the reduced fracture blocks are easy to lose in reduction in operation: in a complex intertrochanter fracture, because the fracture is serious, the intertrochanter fracture is broken into a plurality of fracture blocks, the fracture blocks lack good soft group connection, at the same time, the fracture is often accumulated into nail points, in the main nail opening and expanding process, because the diameter of an opening device or an opening drill bit is large, the opening device or the drill bit forms circumferential extrusion to surrounding bone blocks in the process of pushing along a guide pin to a marrow cavity, especially when the fracture line is accumulated into the nail points, the drill bit enters the marrow cavity from the fracture line, the reduction of the fracture blocks and obvious re-loss and re-displacement of the fracture blocks occur due to the extrusion of the drill bit to the surrounding bone blocks, especially the re-loss of the femoral distance reduction, the femoral distance is a bearing area of compressive stress of the intertrochanter area, the poor reduction of the area is easy to cause internal fixation cutting out of a patient with internal inversion and early load to enter the joint cavity, the failure rate of operation is increased, and the bleeding quantity of the marrow cavity after operation is increased.
3. In simple fracture, due to operation deviation, the reduction is frequently lost in operation: because the guide pin is manually implanted by an operator in the process of implanting the guide pin, the axial line of the guide pin and the axial line of the intramedullary nail after implantation are difficult to be completely overlapped each time, certain deviation can occur between a cavity formed after the guide pin is expanded and the normal position where the intramedullary nail enters, after the intramedullary nail main nail is inserted, the proximal end of the main nail can squeeze a fracture block, further the fracture block is separated and shifted again after the fracture block is reset, the proximal end fracture block moves inwards in clinic frequently, and the femoral distance is reset lost.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the minimally invasive difficult-to-restore intertrochanteric fracture reduction forceps which have the advantages of simple structure, easiness in manufacturing, convenience and rapidness in use, high efficiency, no need of increasing the length of an operation incision and no increase of deep soft tissue injury.
In order to solve the technical problems, the invention adopts the following technical scheme:
the minimally invasive difficult-to-restore intertrochanter fracture reduction forceps comprise two reduction arms, the two reduction arms are mutually hinged in a detachable mode through a hinge assembly, each reduction arm comprises a forceps body and a pressurizing arm which are respectively arranged at two sides of the hinge assembly, and a clamping groove is formed in one side, facing the forceps body of the other reduction arm, of the forceps body of each reduction arm.
The minimally invasive and difficult-to-restore intercolumnar fracture reduction forceps are preferably provided with a pressurizing assembly for pushing and pressurizing the fracture end, the pressurizing assembly comprises a pressurizing rod and a guide sleeve arranged on any one of the reduction arms, and the pressurizing rod is slidably arranged in the guide sleeve and can enable one end of the pressurizing rod to extend into the space between the forceps bodies of the two reduction arms through sliding.
In the minimally invasive refractory intertrochanter fracture reduction forceps, preferably, the pressure rod is provided with a guide pin through hole, the axis of the guide pin through hole is parallel to the sliding direction of the pressure rod, and the axis of the guide pin through hole is located between the two forceps bodies.
In the minimally invasive difficult-to-restore intertrochanter fracture reduction forceps, preferably, the forceps bodies of the two reduction arms are positioned in the same plane, an included angle larger than 0 degrees is formed between the axis of the guide pin through hole and the plane where the two forceps bodies are positioned, and the axis of the guide pin through hole is intersected with the plane where the two forceps bodies are positioned.
The minimally invasive difficult-to-restore intertrochanter fracture reduction forceps are preferable in that the contact surface of one forceps body with the bone block is a curved surface matched with the anatomical characteristics of the femoral tuberosity and the front side surface of the femoral neck when the clamping groove of the other forceps body clamps the bone block, and the contact surface of the other forceps body with the bone block is a curved surface matched with the anatomical characteristics of the femoral tuberosity and the rear side surface of the femoral neck when the clamping groove of the other forceps body clamps the bone block.
In the minimally invasive difficult-to-restore intertrochanter fracture reduction forceps, preferably, the forceps body of at least one reduction arm is also provided with an avoidance channel for the femoral neck anteversion angle positioning needle to pass through; the avoidance channel is a concave groove arranged at the bottom of the clamping groove.
The minimally invasive and difficult-to-restore intertrochanter fracture reduction forceps further comprise a needle placing sleeve used for guiding and placing the femur neck anteversion angle positioning needle, wherein the needle placing sleeve is arranged on a cross rod, the cross rod is detachably arranged on a reduction arm provided with an avoidance channel, and the axis of the needle placing sleeve penetrates through the avoidance channel.
In the minimally invasive difficult-to-restore intertrochanter fracture reduction forceps, preferably, the reduction arm provided with the avoidance channel is provided with a non-circular rotation stopping hole, one end of the cross rod is provided with a plug with the cross section consistent with that of the non-circular rotation stopping hole, the plug penetrates through the non-circular rotation stopping hole, one end of the plug, which is positioned at the non-circular rotation stopping hole, is provided with a resisting boss which is abutted against the reduction arm 1, and the other end of the plug, which is positioned at the non-circular rotation stopping hole, is connected with a locking nut; the needle setting sleeve is arranged on the cross rod through an angle adjusting mechanism, the included angle between the axis of the needle setting sleeve and the hinge axes of the two reset arms can be adjusted through the angle adjusting mechanism, the angle adjusting mechanism comprises a lockable hinge bolt and a connecting rod fixedly connected to the needle setting sleeve, the cross rod and the connecting rod are respectively provided with a hinge through hole, and the lockable hinge bolt is arranged in the hinge through holes of the cross rod and the connecting rod in a penetrating mode.
The minimally invasive difficult-to-restore intercolumnar fracture reduction forceps are preferable, and the pressurizing arm of one reduction arm is bent and extended to the pressurizing arm of the other reduction arm to form an avoidance space when the intramedullary nail positioning frame is placed.
Preferably, the hinge assembly comprises a hinge shaft and a positioning nut, one end of the hinge shaft is fixedly connected to one of the reset arms, and the other end of the hinge shaft penetrates through a through hole in the other reset arm to be in threaded fit connection with the positioning nut; the pressurizing arm of one reset arm is provided with a clamping groove, the pressurizing arm of the other reset arm is hinged with a swing rod which can be clamped into the clamping groove or separated from the clamping groove through swing, the swing rod is provided with a plurality of positioning tooth grooves which are arranged at intervals along the swing rod, and the clamping groove is internally provided with a positioning clamping tooth which is used for being clamped into any positioning tooth groove to prevent the two reset arms from swinging relatively.
Compared with the prior art, the invention has the advantages that: the minimally invasive difficult-to-restore intertrochanter fracture reduction forceps of the invention adopts a split design, when in application, the two reduction arms are disassembled and separated, the forceps bodies of the two reduction arms are respectively put in from the original incision of the operation, then the hinging assembly is adopted for hinging and combining, the clamping grooves of the two forceps bodies are utilized to realize encircling reduction of a fracture block, the fixation is firm, and the problem of secondary displacement after fracture end restoration in the processes of nail placement and operation can be avoided. Compared with the integrated reduction forceps with the defects of difficult implantation, large damage to soft tissues and the like in the prior art, the minimally invasive difficult-to-restore cis-tuberosity fracture reduction forceps have the advantages of simple structure, easy manufacture, convenient and quick use and high efficiency, and the length of an operation incision is not required to be increased, and the damage to deep soft tissues is not increased.
Drawings
Fig. 1 is a schematic diagram of a front view structure of a minimally invasive refractory cis-tuberosity fracture reduction forceps (provided with a pressurizing rod).
Fig. 2 is a schematic rear view of a minimally invasive refractory cis-tuberosity fracture reduction forceps (without a pressure rod).
Fig. 3 is a schematic view of the structure of the reset arm with the sleeve mounted.
Fig. 4 is a schematic bottom view of the reset arm of fig. 3 with a pressure lever.
Fig. 5 is a schematic view of the structure of the reset arm without the sleeve.
Fig. 6 is a schematic structural view of the pressurizing rod.
Fig. 7 is a schematic view of the structure of the needle setting sleeve mounted on the reset arm.
Legend description:
1. a reset arm; 11. a clamp body; 12. a pressing arm; 13. a clamping groove; 14. a concave groove; 15. a clamping groove; 16. a non-circular rotation stopping hole; 2. a hinge assembly; 21. a hinge shaft; 22. positioning a nut; 3. a pressurizing rod; 31. a pin through hole; 32. holding a handle; 4. a guide sleeve; 5. swing rod; 6. a needle placement sleeve; 7. a cross bar; 71. a plug; 72. resisting the boss; 73. a lock nut; 8. a lockable hinge bolt; 9. and a connecting rod.
Detailed Description
The invention is described in further detail below with reference to the drawings and the specific examples.
As shown in fig. 1 to 5, the minimally invasive refractory intertrochanter fracture reduction forceps of the present embodiment includes two reduction arms 1, the two reduction arms 1 are detachably hinged to each other by a hinge assembly 2, each reduction arm 1 includes a forceps body 11 and a pressing arm 12 which are separately disposed at two sides of the hinge assembly 2, and a clamping groove 13 is disposed at a side of the forceps body 11 of each reduction arm 1 facing the forceps body 11 of the other reduction arm 1. The minimally invasive refractory following tuberosity fracture reduction forceps are of split type, when the minimally invasive refractory following tuberosity fracture reduction forceps are applied, the two reduction arms 1 are detached and separated, the forceps bodies 11 of the two reduction arms 1 are respectively placed in from an original incision of an operation, the hinging assembly 2 is used for hinging and combining, encircling reduction of a fracture block can be achieved by using the clamping grooves 13 of the two forceps bodies 11, the fixation is firm, and the problem of secondary displacement after fracture end restoration in the nailing and operation process can be avoided. Compared with the integrated reset forceps with the defects of difficult implantation, large damage to soft tissues and the like in the prior art, the minimally invasive difficult-to-restore intertrochanter fracture reset forceps enter from a muscle gap, the length of an operation incision is not required to be increased, the damage to deep soft tissues is not increased, and the minimally invasive and difficult-to-restore intertrochanter fracture reset forceps have the advantages of simple structure, easiness in manufacturing, convenience and rapidness in implantation and high efficiency.
In the embodiment, the minimally invasive refractory intertrochanter fracture reduction forceps are further provided with a pressurizing assembly for pushing and pressurizing the fracture end, and the fracture end can be further reduced by pushing and pressurizing the fracture end through the pressurizing assembly. As shown in fig. 1, 4 and 6, the pressurizing assembly comprises a pressurizing rod 3 and a guide sleeve 4, the guide sleeve 4 is arranged on any one of the reset arms 1, the pressurizing rod 3 is slidably arranged in the guide sleeve 4, one end of the pressurizing rod 3 can extend between the forceps bodies 11 of the two reset arms 1 through sliding of the pressurizing rod 3 along the guide sleeve 4, further, the fracture end is pushed and pressurized, and when the pressurizing rod 3 enters between the forceps bodies 11 for pressurizing, the pressurizing point and the forceps bodies 11 are basically on the same plane, so that the movement of the forceps bodies 11 in the pressurizing process is avoided. The pressurizing rod 3 can be pulled out of the guide sleeve 4 when pushing and squeezing are not needed. The pressurizing rod 3 of the embodiment is provided with a holding handle 32, which is convenient for holding operation.
In this embodiment, the pressurizing rod 3 is provided with a guide pin through hole 31, the axis a of the guide pin through hole 31 is parallel to the sliding direction of the pressurizing rod 3, and the axis a of the guide pin through hole 31 is located between the two pincer bodies 11. The steel needle can be placed into the bone from the position between the two forceps bodies 11 through the guiding action of the guide needle through hole 31 of the pressurizing rod 3, the fixation of the reduction forceps is realized, the swing of the reduction forceps in the pressurizing and reduction process is avoided, and the steel needle can be further drilled through the guiding action of the guide needle through hole 31 of the pressurizing rod 3, so that the fixation of the fracture end is realized.
Preferably, the clamp bodies 11 of the two reset arms 1 are located in the same plane, an included angle larger than 0 degrees is formed between the axis A of the guide pin through hole 31 and the plane of the two clamp bodies 11, the axis A of the guide pin through hole 31 intersects with the plane of the two clamp bodies 11, and the intersection point of the axis A of the guide pin through hole 31 and the plane of the two clamp bodies 11 is located between the two clamp bodies 11. The guide pin through hole 31 is arranged, so that the guide sleeve 4 and the pressurizing rod 3 can be arranged on one side of the reset arm 1, the whole reset pliers are convenient to manufacture, the pressurizing rod 3 is convenient to assemble and disassemble, holes are not required to be formed in the reset arm 1 or the hinge assembly 2, and the whole reset pliers can be guaranteed to have good rigidity. In addition, the plane of the forceps body 11 is vertical to the plane of the intramedullary nail outer locating frame in the operation, and the direction of the head and neck nail can be conveniently determined, so that the operation time is saved and the operation accuracy is improved.
In this embodiment, the contact surface between the clamping groove 13 of one clamp body 11 and the bone piece is a curved surface matching the anatomical features of the tuberosity and the front side of the femoral neck when clamping, and the contact surface between the clamping groove 13 of the other clamp body 11 and the bone piece is a curved surface matching the anatomical features of the tuberosity and the rear side of the femoral neck when clamping, and the contact area between each clamp body 11 and the bone piece is large when clamping, so that the firmness and stability of clamping can be improved.
In this embodiment, the forceps body 11 of at least one reset arm 1 is further provided with an avoidance channel for the femoral neck anteversion angle positioning needle to pass through, so that the placement of the femoral neck anteversion angle positioning needle is not affected. The relief channel is in particular a recess 14 provided in the bottom of the clamping groove 13, which is easy to manufacture.
In this embodiment, as shown in fig. 7, the minimally invasive refractory intertrochanter fracture reduction forceps are further provided with a needle placement sleeve 6 for guiding and placing the femur neck anteversion angle positioning needle, the needle placement sleeve 6 is mounted on a cross rod 7, the cross rod 7 is detachably mounted on a reduction arm 1 provided with a avoidance channel, and the axis of the needle placement sleeve 6 passes through the avoidance channel. The adoption of the needle placement sleeve 6 can conveniently and rapidly guide the placement of the femur neck anteversion angle positioning needle, and can greatly improve the accuracy of needle placement and the operation efficiency. Thereby improving the accuracy of the intramedullary nail head and neck direction fixing component in the position of the femoral head and reducing the risk of cutting out the femoral head to enter the joint cavity after operation.
The cross rod 7 is detachably mounted on the reset arm 1, specifically, a non-circular rotation stopping hole 16 is formed in the reset arm 1 provided with the avoidance channel, a plug 71 with a cross section consistent with that of the non-circular rotation stopping hole 16 is arranged at one end of the cross rod 7, the plug 71 penetrates through the non-circular rotation stopping hole 16 and cannot rotate relatively, a resisting boss 72 propped against the reset arm 1 is arranged at one end of the non-circular rotation stopping hole 16 on the plug 71, a locking nut 73 is connected to the other end of the non-circular rotation stopping hole 16 on the plug 71, the cross rod 7 is firmly fixed on the reset arm 1 through the cooperation of the resisting boss 72 and the locking nut 73, and when the disassembly is needed, the plug 71 can be pulled out from the non-circular rotation stopping hole 16 only by loosening the locking nut 73. In other embodiments, the cross bar 7 may be removably mounted.
Further, the needle setting sleeve 6 of this embodiment is installed on the cross bar 7 through the angle adjustment mechanism, and the angle adjustment mechanism can adjust the size of the contained angle between the axis of needle setting sleeve 6 and the articulated axis of two reset arms 1, namely adjusts the contained angle between the plane that needle setting sleeve 6 and two pincers bodies 11 are located, can adjust the angle of putting into of femur neck anteversion angle pilot pin like this, can satisfy different needle setting condition.
The angle adjusting mechanism comprises a lockable hinge bolt 8 and a connecting rod 9 fixedly connected to the needle placing sleeve 6, wherein the cross rod 7 and the connecting rod 9 are respectively provided with a hinge through hole, and the lockable hinge bolt 8 is arranged in the hinge through holes of the cross rod 7 and the connecting rod 9 in a penetrating manner. The lockable hinge bolt 8 is a combination of an existing bolt and a nut, when the lockable hinge bolt 8 is loosened, the connecting rod 9 and the cross rod 7 can relatively rotate around the axis of the hinge through hole, so that the angle of the needle placement sleeve 6 is adjusted, and the locking lockable hinge bolt 8 can lock the connecting rod 9 and the cross rod 7, so that the angle of the needle placement sleeve 6 is kept unchanged. The detachable mounting structure and the angle adjusting mechanism of the cross rod 7 are simple in structure, easy to manufacture and simple and convenient to operate.
In this embodiment, the hinge assembly 2 includes a hinge shaft 21 and a positioning nut 22, one end of the hinge shaft 21 is fixedly connected to one of the reset arms 1, and the other end passes through a through hole on the other reset arm 1 to be connected with the positioning nut 22 in a threaded fit manner, and the positioning nut 22 is screwed to disassemble or assemble the two reset arms 1 conveniently and rapidly.
In this embodiment, as shown in fig. 1 and fig. 2, the pressing arm 12 of one of the reset arms 1 bends and extends toward the pressing arm 12 of the other reset arm 1 to form an avoiding space when the intramedullary nail positioning frame is placed, and the avoiding space formed by bending the pressing arm 12 can prevent the reset forceps from blocking the intramedullary nail positioning frame and preventing the influence on the subsequent operation.
In this embodiment, a clamping groove 15 is formed at one end of the pressing arm 12 of one reset arm 1 far away from the hinge assembly 2, a swing rod 5 capable of being clamped into the clamping groove 15 or separated from the clamping groove 15 through swinging is hinged at one end of the pressing arm 12 of the other reset arm 1 far away from the hinge assembly 2, a plurality of positioning tooth grooves are formed on the swing rod 5 and are arranged at intervals along the swing rod 5, positioning clamping teeth for being clamped into any one of the positioning tooth grooves are formed in the clamping groove 15, when the swing rod 5 swings and is clamped into the clamping groove 15 and the positioning clamping teeth are clamped into any one of the positioning tooth grooves, temporary fixation between the two reset arms 1 can be achieved, and relative swinging of the two reset arms 1 is prevented (even if the included angle of the two reset arms 1 with corresponding size is kept unchanged), so that a reset effect is maintained; the swing rod 5 swings to be separated from the clamping groove 15, so that the free swing of the two reset arms 1 can be recovered. The fixing component for fixing the two reset arms 1, which is formed by combining the swing rod 5 with the positioning tooth slot and the clamping groove 15 with the positioning clamping tooth, has the advantages of simple structure, easy manufacture and convenient operation, can greatly facilitate operation and improve operation efficiency.
In this embodiment, the end of each jaw 11 remote from the hinge assembly 2 is pointed to facilitate access to the muscular space and surrounding delicate joint capsule tissue.
When the minimally invasive refractory intertrochanter fracture reduction forceps of the embodiment are specifically applied, the two reduction arms 1 are separated, the front part is slightly separated along the direction of muscle fibers in the hip, one reduction arm 1 enters along a muscle gap (Heuter gap) in front of the proximal end of the femur, is arranged in front of the proximal end of the femur, and the tip end is positioned at the inner side of the femoral neck. The other reset arm 1 is placed along the posterior muscle gap of the proximal end of the femur, the tip is also positioned at the inner side of the femoral neck, after the two reset arms 1 are respectively placed in the front and the rear of the fracture end, the two reset arms 1 are combined together through the hinge assembly 2, the traction and the rotation of the distal end of the limb are adjusted, the clamp is reset, the purpose of resetting the fracture end is realized, and after the reduction of the fracture end is good under perspective, the fixation is realized. Due to individual differences in bone sizes, in cases where a part is accompanied by a sagittal fracture, the compression rod 3 can be used to compress the fractured end by pushing the fractured end, further reduction of the fractured end can be achieved, and a steel needle can be placed through the guide needle through hole 31 of the compression rod 3, so that temporary fixation of the fractured end and fixation of the relative positions of the reduction forceps and the bone can be achieved.
The above description is merely a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above examples. Modifications and variations which would be obvious to those skilled in the art without departing from the spirit of the invention are also considered to be within the scope of the invention.
Claims (6)
1. The minimally invasive difficult-to-restore cis-tuberosity fracture reduction forceps comprises two reduction arms (1), and is characterized in that: the two reset arms (1) are mutually hinged in a detachable mode through the hinge assembly (2), each reset arm (1) comprises a clamp body (11) and a pressurizing arm (12) which are respectively arranged at two sides of the hinge assembly (2), and a clamping groove (13) is formed in one side, facing the clamp body (11) of the other reset arm (1), of the clamp body (11) of each reset arm (1);
the minimally invasive and difficult-to-restore intercolumnar fracture reduction forceps are also provided with a pressurizing assembly for pushing and pressurizing fracture ends, the pressurizing assembly comprises a pressurizing rod (3) and a guide sleeve (4) arranged on any one of the reduction arms (1), and the pressurizing rod (3) is slidably arranged in the guide sleeve (4) and can enable one end of the pressurizing rod (3) to extend into a position between forceps bodies (11) of the two reduction arms (1) through sliding;
the pressurizing rod (3) is provided with a guide pin through hole (31), the axis of the guide pin through hole (31) is parallel to the sliding direction of the pressurizing rod (3), and the axis of the guide pin through hole (31) is positioned between the two clamp bodies (11);
the clamp bodies (11) of the two reset arms (1) are positioned in the same plane, an included angle larger than 0 degrees is formed between the axis of the guide pin through hole (31) and the plane where the two clamp bodies (11) are positioned, and the axis of the guide pin through hole (31) is intersected with the plane where the two clamp bodies (11) are positioned;
the contact surface of the clamping groove (13) of one clamp body (11) and the bone block is a curved surface matched with the anatomical characteristics of the femur tuberosity and the front side surface of the femur neck when being clamped, and the contact surface of the clamping groove (13) of the other clamp body (11) and the bone block is a curved surface matched with the anatomical characteristics of the femur tuberosity and the rear side surface of the femur neck when being clamped.
2. The minimally invasive refractory intercolumnar fracture reduction forceps according to claim 1, wherein: the forceps body (11) of at least one reset arm (1) is also provided with an avoidance channel for the femur neck anteversion angle positioning needle to pass through; the avoidance channel is a concave groove (14) arranged at the bottom of the clamping groove (13).
3. The minimally invasive refractory intercolumnar fracture reduction forceps according to claim 2, wherein: the minimally invasive difficult-to-restore intertrochanter fracture reduction forceps further comprise a needle placement sleeve (6) for guiding and placing a femur neck anteversion angle positioning needle, the needle placement sleeve (6) is installed on a cross rod (7), the cross rod (7) is detachably installed on a reduction arm (1) provided with a avoidance channel, and the axis of the needle placement sleeve (6) penetrates through the avoidance channel.
4. The minimally invasive refractory intercolumnar fracture reduction forceps according to claim 3, wherein: a non-circular rotation stopping hole (16) is formed in the reset arm (1) provided with the avoidance channel, a plug (71) with the cross section consistent with that of the non-circular rotation stopping hole (16) is arranged at one end of the cross rod (7), the plug (71) penetrates through the non-circular rotation stopping hole (16), a resisting boss (72) propped against the reset arm (1) is arranged at one end of the non-circular rotation stopping hole (16) on the plug (71), and a locking nut (73) is connected to the other end of the non-circular rotation stopping hole (16) on the plug (71); the needle placing sleeve (6) is arranged on the cross rod (7) through an angle adjusting mechanism, the included angle between the axis of the needle placing sleeve (6) and the hinge axes of the two reset arms (1) can be adjusted through the angle adjusting mechanism, the angle adjusting mechanism comprises a lockable hinge bolt (8) and a connecting rod (9) fixedly connected to the needle placing sleeve (6), the cross rod (7) and the connecting rod (9) are both provided with hinge through holes, and the lockable hinge bolt (8) is arranged in the hinge through holes of the cross rod (7) and the connecting rod (9) in a penetrating mode.
5. A minimally invasive refractory intercolumnar fracture reduction forceps according to any one of claims 1 to 3, wherein: the pressurizing arm (12) of one reset arm (1) is bent and extended to the pressurizing arm (12) of the other reset arm (1) to form an avoidance space when the intramedullary nail locating rack is placed.
6. A minimally invasive refractory intercolumnar fracture reduction forceps according to any one of claims 1 to 3, wherein: the hinge assembly (2) comprises a hinge shaft (21) and a positioning nut (22), one end of the hinge shaft (21) is fixedly connected to one of the reset arms (1), and the other end of the hinge shaft passes through a through hole in the other reset arm (1) to be in threaded fit connection with the positioning nut (22); the pressurizing arm (12) of one reset arm (1) is provided with a clamping groove (15), the pressurizing arm (12) of the other reset arm (1) is hinged with a swing rod (5) which can be clamped into the clamping groove (15) through swing or separated from the clamping groove (15), the swing rod (5) is provided with a plurality of positioning tooth grooves which are arranged at intervals along the swing rod (5), and the clamping groove (15) is internally provided with positioning clamping teeth which are used for being clamped into any positioning tooth groove to prevent the two reset arms (1) from swinging relatively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265735.0A CN106913368B (en) | 2017-04-21 | 2017-04-21 | Minimally invasive difficult-to-restore cis-tuberosity fracture reduction forceps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265735.0A CN106913368B (en) | 2017-04-21 | 2017-04-21 | Minimally invasive difficult-to-restore cis-tuberosity fracture reduction forceps |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106913368A CN106913368A (en) | 2017-07-04 |
| CN106913368B true CN106913368B (en) | 2023-09-26 |
Family
ID=59567619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710265735.0A Active CN106913368B (en) | 2017-04-21 | 2017-04-21 | Minimally invasive difficult-to-restore cis-tuberosity fracture reduction forceps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106913368B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108420515B (en) * | 2018-03-16 | 2023-12-22 | 吉林大学 | Calcaneus fracture reduction device |
| CN108433803B (en) * | 2018-03-22 | 2019-05-31 | 河北医科大学第三医院 | A kind of fracture of calcaneus joint restorer |
| CN109730747B (en) * | 2019-01-08 | 2020-08-25 | 王峰 | Accurate-positioning reduction fixing forceps for traumatic orthopedics department |
| CN112545611B (en) * | 2020-12-02 | 2022-03-08 | 中国科学院大学宁波华美医院 | Femoral tuberosity resetting device |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007075429A (en) * | 2005-09-15 | 2007-03-29 | For S Medical:Kk | Reposition forceps |
| CN201131787Y (en) * | 2008-01-04 | 2008-10-15 | 孙友良 | Supporting bone and resetting fixator |
| CN203138653U (en) * | 2013-04-05 | 2013-08-21 | 翟延荣 | Multifunctional fracture reduction oriented pliers |
| CN103565508A (en) * | 2013-11-26 | 2014-02-12 | 段强民 | Orthopedic guide reset pincers |
| CN204192702U (en) * | 2014-10-27 | 2015-03-11 | 泸州市中医医院 | Femoral bone tuberosity reduction forceps |
| CN204207832U (en) * | 2014-10-30 | 2015-03-18 | 山东省生建重工有限责任公司 | Multifunctional bone hold tool |
| CN204274569U (en) * | 2014-11-19 | 2015-04-22 | 单力国 | The whole ridge reduction forceps of easy-dismount |
| CN104665902A (en) * | 2015-03-02 | 2015-06-03 | 毕宏政 | Guide fixing device for reduction of fracture |
| CN204734542U (en) * | 2015-05-29 | 2015-11-04 | 黄石市爱康医院 | Three -dimensional reduction of fracture fixer of multi -angle |
| CN205234573U (en) * | 2015-11-03 | 2016-05-18 | 尤微 | Fixed pincers and fixed pincers of combination that key fracture steel sheet resets and implants |
| CN205411305U (en) * | 2015-12-16 | 2016-08-03 | 王亮 | Fixed nail locator of putting of multi -functional reduction of fracture |
| CN105832398A (en) * | 2016-03-21 | 2016-08-10 | 段强民 | Positioning and guiding orthopedic reduction forceps |
| CN205612538U (en) * | 2016-02-16 | 2016-10-05 | 上海市浦东新区周浦医院 | Top stick pincers that reset |
| CN207545162U (en) * | 2017-04-21 | 2018-06-29 | 胡金玺 | Minimally invasive irreducible is along intertrochanteric fracture reduction forceps |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7588585B2 (en) * | 2002-03-26 | 2009-09-15 | Novare Surgical Systems, Inc. | Handleless clamping device |
| EP1772106A1 (en) * | 2005-10-06 | 2007-04-11 | Zimmer GmbH | Instrument for preparing and/or working the femur head |
-
2017
- 2017-04-21 CN CN201710265735.0A patent/CN106913368B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007075429A (en) * | 2005-09-15 | 2007-03-29 | For S Medical:Kk | Reposition forceps |
| CN201131787Y (en) * | 2008-01-04 | 2008-10-15 | 孙友良 | Supporting bone and resetting fixator |
| CN203138653U (en) * | 2013-04-05 | 2013-08-21 | 翟延荣 | Multifunctional fracture reduction oriented pliers |
| CN103565508A (en) * | 2013-11-26 | 2014-02-12 | 段强民 | Orthopedic guide reset pincers |
| CN204192702U (en) * | 2014-10-27 | 2015-03-11 | 泸州市中医医院 | Femoral bone tuberosity reduction forceps |
| CN204207832U (en) * | 2014-10-30 | 2015-03-18 | 山东省生建重工有限责任公司 | Multifunctional bone hold tool |
| CN204274569U (en) * | 2014-11-19 | 2015-04-22 | 单力国 | The whole ridge reduction forceps of easy-dismount |
| CN104665902A (en) * | 2015-03-02 | 2015-06-03 | 毕宏政 | Guide fixing device for reduction of fracture |
| CN204734542U (en) * | 2015-05-29 | 2015-11-04 | 黄石市爱康医院 | Three -dimensional reduction of fracture fixer of multi -angle |
| CN205234573U (en) * | 2015-11-03 | 2016-05-18 | 尤微 | Fixed pincers and fixed pincers of combination that key fracture steel sheet resets and implants |
| CN205411305U (en) * | 2015-12-16 | 2016-08-03 | 王亮 | Fixed nail locator of putting of multi -functional reduction of fracture |
| CN205612538U (en) * | 2016-02-16 | 2016-10-05 | 上海市浦东新区周浦医院 | Top stick pincers that reset |
| CN105832398A (en) * | 2016-03-21 | 2016-08-10 | 段强民 | Positioning and guiding orthopedic reduction forceps |
| CN207545162U (en) * | 2017-04-21 | 2018-06-29 | 胡金玺 | Minimally invasive irreducible is along intertrochanteric fracture reduction forceps |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106913368A (en) | 2017-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106913368B (en) | Minimally invasive difficult-to-restore cis-tuberosity fracture reduction forceps | |
| CA2884444C (en) | Compressor-distractor | |
| US7465303B2 (en) | External fixation assembly | |
| US8273111B2 (en) | Growth control device | |
| JP4685865B2 (en) | Surgical device that captures, positions, and aligns the fractured human sternum | |
| US20090248084A1 (en) | Systems and methods for performing ankle arthrodesis in a human patient | |
| JP2011516150A (en) | Intramedullary instrument assembly and related methods | |
| CN107496008B (en) | Multifunctional fracture reduction guiding forceps | |
| CN104783881A (en) | Minimally invasive intramedullary fixing device for clavicle fracture | |
| CN107789050B (en) | Quick positioner for femoral intramedullary nail needle insertion point | |
| EP3170465A1 (en) | Device for fixing proximal humerus | |
| CN215458565U (en) | Percutaneous tibial bone fracture reduction fixing forceps | |
| CN217366055U (en) | Axial compression repositor for calcaneal fracture | |
| CN108236493B (en) | Scoliosis nail stick correction support system | |
| CN211325523U (en) | Reduction forceps with point | |
| AU2019341596B2 (en) | A femoral nail and instrumentation system | |
| CN108451675B (en) | Distal end fixed prosthesis femur holder | |
| CN113813036A (en) | Shape-fitting nail internal fixation system for intertrochanteric fracture | |
| JP2022522119A (en) | Telescopic nails and related drilling equipment | |
| US11890039B1 (en) | Multi-diameter K-wire for orthopedic applications | |
| CN215839417U (en) | Reduction forceps for rear ankle fracture | |
| CN215914861U (en) | Shape-fitting nail internal fixation system for intertrochanteric fracture | |
| CN210354870U (en) | Low-incisura locking type external tibial fixing frame | |
| CN212755853U (en) | Posterior spinal internal fixation minimally invasive surgery installation system | |
| CN219629750U (en) | Olecranon inner side locking plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |